Key Takeaways:
Fastly Inc. (FSLY) plunged 29 percent in late trading after its first-quarter revenue from artificial intelligence traffic fell short of analyst estimates, overshadowing an otherwise strong report that included raised full-year guidance.
"We had a great start to the year at Fastly," CEO Kip Compton said in a statement, highlighting the company's 20 percent year-over-year revenue growth. "In Q1, we delivered $173 million in revenue, up 20% year-over-year and near the high end of our guidance range."
The content delivery network provider reported revenue of $173.02 million and adjusted earnings of 13 cents per share. While both figures surpassed consensus estimates of $171.8 million and 9 cents, the market focused on a miss in a key growth segment. Security revenue, which captures the bulk of AI-related agentic traffic, rose 47 percent to $34.9 million but failed to meet the $36.9 million Wall Street had projected.
The sharp selloff underscores investors’ intense focus on specific AI-driven growth metrics, where even minor misses can eclipse positive headline numbers. The reaction mirrors recent pressure on other software firms like Amplitude Inc. (AMPL), which also saw its stock fall after reporting that rising AI inference costs were compressing gross margins despite a revenue beat. For Fastly, the AI revenue miss proved critical, halting a rally that had seen the stock gain 210 percent year-to-date.
Despite the market's reaction, Fastly's management issued an optimistic outlook. The company raised its full-year 2026 profit forecast to a range of 27 to 33 cents per share, up from its previous projection of 23 to 29 cents. The consensus estimate among analysts was 28 cents.
Full-year revenue guidance was also lifted to between $710 million and $725 million, an increase from the initial $700 million to $720 million view. For the upcoming second quarter, Fastly anticipates revenue of $170 million to $176 million, with adjusted profit of 5 to 8 cents per share, comfortably ahead of analysts' forecasts for $169.8 million in sales and 4 cents in profit.
The negative reaction suggests investors are pricing in a new reality where the costs and execution of AI strategies are under heavy scrutiny. While Fastly’s large customer count grew an impressive 39 percent year-over-year to 634, the shortfall in the high-growth security segment was enough to trigger the post-market collapse.
The guidance raise signals management's confidence in its core business and ability to capture future growth. Investors will now watch the company's Q2 results closely to see if it can meet the heightened expectations for its AI-related revenue streams and justify its forward-looking optimism.
This article is for informational purposes only and does not constitute investment advice.
